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+--- Thread: How to check if ‘userfile’ field is not empty before uploading a file? (/showthread.php?tid=4869)
How to check if ‘userfile’ field is not empty before uploading a file? - El Forum - 12-20-2007
[eluser]pulok[/eluser]
How can I check if user has selected any file to upload (before calling the $this->upload->do_upload() in my controller)? This is needed because there are other input fields along with a file upload field which is not mandatory. Basically what I want to do is:
Code:
if ( user_chose_any_file_to_upload ){
// try to upload file
$this->upload->do_upload();
blah.. blah.. blah..
}How to check if ‘userfile’ field is not empty before uploading a file? - El Forum - 12-20-2007
[eluser]Michael Wales[/eluser]
Code:
<?php
if (isset($_FILES)) {
// They uploaded some sheezy
}
?>How to check if ‘userfile’ field is not empty before uploading a file? - El Forum - 12-21-2007
[eluser]pulok[/eluser]
Thanks Michael.
Sorry it was posted somehow twice :-(
How to check if ‘userfile’ field is not empty before uploading a file? - El Forum - 12-21-2007
[eluser]LuckyFella73[/eluser]
Maybe it's a bit fussy to mention:
While checking the file (like Michael
stated before) the file is allready
uploaded to the temp-directory of
your webserver. You then just decide
to move the file to your decided filestructure
or not.
Nice weekend - Fussyfella
How to check if ‘userfile’ field is not empty before uploading a file? - El Forum - 12-21-2007
[eluser]pulok[/eluser]
For some reason it is not working as expected. Take the upload example in userguide at http://ellislab.com/codeigniter/user-guide/libraries/file_uploading.html
I slightly modified the code of upload.php as follows. It did not work! Am I missing anything?
Code:
if (isset($_FILES)) {
// code from user guide
if ( ! $this->upload->do_upload()){
$error = array('error' => $this->upload->display_errors());
$this->load->view('upload_form', $error);
} else {
$data = array('upload_data' => $this->upload->data());
$this->load->view('upload_success', $data);
}
} else {
// custom action
$error = array('error' => 'My Error Message: Well, user decided not to upload any file this time.');
$this->load->view('upload_form', $error);
}How to check if ‘userfile’ field is not empty before uploading a file? - El Forum - 12-21-2007
[eluser]LuckyFella73[/eluser]
Would be nice if you could post the whole controller code.
Your post doesn't make clear for example if you did set the config
params.
Code:
# CI Manual:
$config['upload_path'] = './uploads/';
$config['allowed_types'] = 'gif|jpg|png';
$config['max_size'] = '100';
$config['max_width'] = '1024';
$config['max_height'] = '768';And please describe what kind of error do you get or what happen
(or what exactly do not happen) after submitting the form.
How to check if ‘userfile’ field is not empty before uploading a file? - El Forum - 12-21-2007
[eluser]pulok[/eluser]
I am trying to check, if user has really selected any file to upload (before calling the do_upload ) in my controller. Regarding the code, I referred the standard upload example from CI user guide. I only added ‘if (isset($_FILES))’ block in code to check if user selected any file to upload or not, which is not working anyway.
Other words, I like to separate ‘validation’ and ‘error check’ for upload file. HTH.
How to check if ‘userfile’ field is not empty before uploading a file? - El Forum - 02-29-2008
[eluser]elvix[/eluser]
I'm not 100% sure testing for presence of $_FILES is enough. Seems like (in my limited testing) that any multipart form with an upload is going to generate the $_FILES array regardless, which makes sense since you need to know if there was a problem (found in $_FILES['userfile']['error']).
So, I added a test for no errors, which seems to work:
Code:
isset($_FILES) && @$_FILES['userfile']['error'] == '0'